Muta marriage (time fixed marriage) is a type of marriage in Islam which has most of the conditions of permanent marriage with little differences. After agreeing with the woman who must not be currently married, nor passing her Iddah (post divorce or post death of previous husband), that she will be your wife for the agreed period of time and agreed Mahr (dowry). She or any one on her behalf should tell you (Zawwajtoka Nafsi alal Mahr al Ma'loom lil muddatil Ma'looma), and you must reply (Qabilto al Tazweej Linafsi) or just (Qabilt). You must give her her Mahr immediately and both will be after the recitation of the Aqd, husband and wife for the agreed period. You can extend the time after the first is over by terminating it and having another Aqd with another period.

Follow Up Question:

I listend to many people,that muttah like a zinah, its haram, so my question is that why do you get marry temprory?why do you not get parment marry.? I think it is panic and shamfull for feamle....plz clear to me